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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Google logo
GoogleMetaAmazonBloomberg

Also asked at Amazon, Bloomberg

Easy
Software Engineer

Digit Product Minus Digit Sum

Problem For positive integer n, multiply its decimal digits and separately add them. Return the product minus the sum. `cpp class Solution { public: ...

Coding & AlgorithmsMath & Number Theory
0
0
6 people solved
Meta logo
Meta
Medium
Software Engineer

Design an in-memory cloud file system

In-Memory Cloud File System (OOD) Design an in-memory cloud file system that supports files owned by users with storage quotas. Data model / rules - E...

Coding & Algorithms
9
0
68 people solved
Feb 11, 2026
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Design a live-stream comments system

This question evaluates design skills for scalable, low-latency real-time comment systems, covering architecture, data modeling, APIs, ingestion and f...

System DesignReal-Time SystemsMessaging & Event-Driven
9
0
94 people solved
Jan 22, 2026
Axon logo
Axon
Medium
Software Engineer Locked

Design an image-to-multilanguage translator

This question evaluates a candidate's ability to design a scalable, low-latency system for processing images with OCR and multilingual translation, ex...

System DesignSystem Design FundamentalsFile & Media Storage
19
0
252 people solved
Feb 3, 2026
Oscar logo
Oscar
Medium
Product Manager

Oscar: a member product that improves care quality and efficiency and stands out

You are a product manager at Oscar, the US health insurer. Leadership has set three goals at once: raise the clinical quality of the care members rece...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
8 people solved
Apr 4, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Implement debounced async autocomplete input

Implement debounced async autocomplete input Implement an Autocomplete Input Component (Frontend Technical Screen) Context Build an autocomplete input...

Software Engineering FundamentalsUI Components & AccessibilityJavaScript & TypeScript
15
0
112 people solved
Aug 1, 2025
Apple logo
Apple
Medium
Software Engineer

Explain use cases for clock synchronizers

Assume you are designing a digital system with multiple clock domains. The clocks have different frequencies and unknown phase relationships. You can ...

Software Engineering Fundamentals
7
0
103 people solved
Dec 8, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Copy a Linked List with Random Pointers

Create a deep copy of a linked list whose nodes have next and arbitrary random pointers, using constant auxiliary space beyond the new nodes. Preserve...

Coding & Algorithms
4
1
53 people solved
Jun 3, 2026
Apple logo
Apple
Easy
Data Scientist

Write the logistic regression loss function

Write the logistic regression loss function Logistic Regression Loss Consider binary logistic regression. - Dataset: \(\{(\mathbf{x}_i, y_i)\}_{i=1}^n...

Machine LearningRegression & Statistical ModelingSupervised Learning
14
0
128 people solved
Jul 15, 2025
The New York Times logo
The New York Times
Medium
Product Manager

Behavioral: aligning engineering, design and other functions on one project

In a product manager interview, you are asked to tell the story of a project you worked on with people from several functions, such as engineering, de...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
1
0
11 people solved
Apr 8, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design a packet reassembler API

Design a PacketAssembler API for Streaming Fragments Context and Assumptions - You are building a small component that assembles packets from a byte s...

System DesignData Structure Design
22
1
244 people solved
Sep 6, 2025
INDmoney logo
INDmoney
Medium
Product Manager

Choose an investing app you like and design a social layer for its users

Name the investing app you like best, whether you use it for stocks, crypto or mutual funds, and explain what makes it your favorite. Then design a so...

Product Design & StrategyProduct SenseProduct Design & Improvement
1
0
8 people solved
Mar 8, 2026
Google logo
Google
Medium
Product Manager

Grounding, evaluation and bias controls for AI answers in Google Search

You are a product manager responsible for the AI-generated answers that Google Search shows for some queries. How should Google make sure those answer...

Machine LearningAI Product ManagementLLM Applications
1
0
14 people solved
Aug 20, 2026
Uber logo
Uber
Medium
Software Engineer

Design an object-oriented parking lot system

Design an object-oriented model for a parking lot management system. Requirements: - The parking lot has multiple levels; each level has multiple park...

Software Engineering FundamentalsLow-Level Design (OOP)
36
0
257 people solved
Nov 2, 2025
DoorDash logo
DoorDash
Medium
Product Manager

Rideshare Subscription: Finding and Ranking the Experiences That Hurt Members Most

You are the product manager for the paid membership program of a ride-hailing app. How would you find out which member experiences are the most negati...

Analytics & ExperimentationSegmentation & Cohort AnalysisCausal Inference
0
0
10 people solved
Feb 17, 2026
Netflix logo
Netflix
Hard
Software Engineer

Design viewport dedup for Netflix home page

Design viewport dedup for Netflix home page Design the Above-the-Fold Deduplicated Home Page Rendering Context You are designing the initial viewport ...

System DesignSearch & Feed SystemsPersonalization
42
0
417 people solved
Aug 1, 2025
Bitdeer logo
Bitdeer
Hard
Software Engineer

Defend an AI Infrastructure Project's Architecture Step by Step on a Flow Diagram

This round was a deep dive into a project from the resume rather than a new design problem. Choose a project you know end to end. Draw a flow diagram ...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
0
0
7 people solved
Jul 20, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Design a regional surge pricing strategy

Scenario You operate a ride-hailing platform. You need to design a system that sets surge multipliers (dynamic pricing) for a given region. Task Desig...

System DesignML System Design
49
0
348 people solved
Dec 15, 2025
Qualcomm logo
Qualcomm
Medium
Software Engineer

Implement A* Maze Search

Implement maze pathfinding in C++. You are given an m x n grid where '.' is an open cell, '#' is a wall, S is the start, and T is the target. You may ...

Coding & AlgorithmsGrids & MatricesGraphs
8
0
136 people solved
Mar 2, 2026
Google logo
Google
Medium
Software Engineer Locked

Design an object-oriented poker game

This question evaluates object-oriented design and system modeling skills, including abstraction, class responsibilities, object relationships, and do...

Software Engineering FundamentalsLow-Level Design (OOP)
15
0
136 people solved
Jan 6, 2026
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